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BRX Series PLCs (Stackable Micro Brick): Do-more Designer Videos
Detailed Product Overview
(VID-DD-0014) - This video gives basic information on Using the FREQCNT "Frequency Counter" instruction in the Do-more Designer software. It presents information that is commonly missed by users. This WILL NOT be a complete tutorial for the instruction but rather a supplement to the help file and customer experience.
** Software Version used in this video: Do-more Designer 2.0
This is a multi-scan instruction, because it takes multiple scans to complete, it cannot be used in either Subroutines or Interrupt Service Routines. It can used in Programs and under special circumstances it can also be used in Stages inside of a Program or in Tasks. See the help topic “Instruction Set Chart” for more information. This instruction takes input pulse counts and converts them to a rate based upon the sample time and the Frequency units you select here. If you find your output to be erratic, use the filter, to smooth the reading. If the filter is not enough to smooth the reading, try increasing the sample time.